The 2002 Wisconsin gubernatorial election was held on November 5, 2002. Incumbent Republican Governor of Wisconsin Scott McCallum, who had assumed office upon the resignation of Tommy Thompson, ran for his first full term in office. McCallum won his party's nomination by defeating two minor candidates, and Attorney General of Wisconsin Jim Doyle won the Democratic primary with a little more than a third of the vote in a highly competitive primary election. In the general election, the presence of Ed Thompson, former Governor Tommy Thompson's younger brother, the Mayor of Tomah, and the Libertarian Party nominee, held both McCallum and Doyle to under fifty percent of the vote, enabling Doyle to win with 45% of the vote, defeating McCallum.